Improvement in machines for preparing heels for boots and shoes



JACOB JENKINS, OF LYNN, MASSACHUSETTS, ASSIGNOR TO G. W. KEENE, M. W. SHEPARD, AND J. C. STIMPSON.

IMPROVMENT IN MACHINES FOR PREPARING HEELS FOR BOOTS ANO SHOES.

` Specilication forming part of Letters Patent N0. 36,586, dated September 30, 1862.

.To all whom it may concern,.-

Be itknown that I, Jacon JENKINS, ofLynn, in the county of Essex and Commonwealth of Massachusetts, haveinvented anew and nseful Machine for Attaching and Finishing Shoe# Heels; and I do hereby declare that the following is afull, clear, and exact description of the construction and operation of the saine, reference being had to the accompanying drawings,

- forming a part of this specification, in which- Figure 1 is a front elevation with the rotary cutter 14, Fig. 6, removed. The other figures are views of the various parts detached and not so fully represented in Fig. l.

Like parts are indicated by the saine letters and figures in all the drawings.

To enable others skilled in the art to make and use my invention, I will now describe its construction and operation.

A A', Fig. 1, is a frame or table of iron, cast in one piece, a top View of the saine being shown in Figs. 2 and 3.

B is a shaft turning in suitable bearings in the sides of the frame, and provided with a crank, B', and fly-wheel B", as shown in Fig. 1.

C is a crank fast on the end of shaft B, and provided with a slot., (represented by the dotted lines inr the side view, Fig. 10,) through which passes the crank-pin C'.

c is a screw passing through crank C and a hole in shaft B and into the crank-pin C', as shown by the dotted lines in Fig. 1, the object of said screw being to move crank-pin C' nearer to or farther from the shaft B, for the purpose hereinafter described.

D is a cast-iron arm, shaped as shown in Figs. 1 and 10, through the lower end of which passes the crank-pin C'.

F is a spindle turning ih suitable bearings in the uprights F' F', which are cast on the table A'.

E', Fig. 10, is a chain belt,one extremity of which is attached to spindle F, and the other (passing through the top of D and terminating with a screw-bolt link) is confined and kept suh'iciently taut by means of nut D'. E is a similar chain belt, one end of which (see Figs. 1 and 10) is fast to the spindle F, andthe other, passing through start d, Fig. 1, is confined and tightened by means of nut D". Thus it is obvous that by rotating shaft B arm D will be carried up and down by crank-pin C', andthe chains E and 'E' will rock the spindle F, and

through a. greater or less arc ol' a circle ac-v G' is a block of steel, the end of which (see Fig. 7) is shaped like the bottoni of a shoe heel and partly Surrounded by a band of steel, G, the two ends of which are united by means of a screw-bolt, 15.

16 is a groove formed by band G and a rabbet in block G', as shown iu Fig. 7. A line passi ng round the center of this groove is the exact shape and about the size of the top edge of the heel to be made.

Through the center of G' is a hole (see Fig. 7) large enough to receive thespindle F, h being anuttoholdsaid blockin place,asshowninFig. 1. There should be as many of these blocks as there are different styles of heels to be made,

one block answering for all sizes of the same pattern. To the extremity of spindleF is attached the heel-bed T, Fig. l, the end of which is ofthe size and shape of a last-heel bottom. The end of T is roughened or provided with little points to keep the leather or shoeheel S from slipping.

F" F" are uprights attached to the table A', through which passes the screw-shaft Q, the latter being prevented from turning by a longitudinal slot and a pin, in the usual manner. Through the center of wheel 17 is a female screw, so that by turning said wheel, shaft Q, can be driven toward heel-bed T or from it, at pleasure. Y

R is a plate of hardened steel, a little smaller than the bottom of a shoe-heel, through the center of which, as shown in Fig. S, is a hole,

r, to admit apin proj ectingthe thickness of a shoe-heel from the center of the end of shaft Q.

H (a top View of which is shown in Fig. 2) is an adjustable slide extending across the table A', two edges of said table being beveled under, so as to form a dovetail tenon with the beveled mortises in the anges on the under side of the two extremities of said slide. This slide is kept to its bearings on the table by v means of screws s s passing through flange W' and against the beveled adjustable block orslide 22, Fig. 2.

U Fi s 1 2 and 3 is a start cast on the un- J and bearing on said s rino and as the cam 7 g 7 7 7 p C7 der side of the table.

U' is a screw-bolt turning in U and screwing into start 3, Fig. 1, on the under side of slide H, by means of which screw-bolt it is ob vious that H can be moved to the right or left. The object of this lateral movement of H is to adjust pivot Z iu slide J, Fig. 4, directly un der the face of the heelbed T.

I (a top view of which is represented in Fig. 3) is another slide fitting over H and sliding 0n and guided by suitable ways on the ex tremities of H, as represented in Figs. l and 2, one extremity of H being beveled, as shown in Fig. 1, to tit a corresponding bevel in the flange on the under side ot' l.

18 and 19, Fig. -1, are screws for tightening block t and keeping I to its bearings. The farther end of I is held in place uponH by means of strip W, which is screwed onto strip W', Fig. 2.

X is a spring attached by screw 2 to a start on the under side of I, as represented by the dotted lines in Fig. 3. The opposite side of this spring rests against a start on the under side of W', as represented by the dotted lines in Fig. 3. Theaction of this spring is to force slide I and its appendages in the direction of the arrow, Fig. 3l

H (the shape and position of which are shown in Figs. 1 and 3) is an upright arm ot` steel attached to the top of slide I, the upper end of said arm being bent, as seen in Fig. 1, so as to enter and slide in groove 16, Fig. 7. Thus as the groove 16 vibrates on its axis F it is obvious that slide l, with its appendages, will be moved backward and forward on slide H and carry the cutting and polishing tools P and 14, Fig. 6, so as to make the shoe-heel edge conform to the shape of groove 16.

1 isa start on the top ot' I and serving as a rest for the bottom of slide L. (See Fig. 1.)

1" is a block of steel made to slide in a slot in slide I, as represented in Fig. 3.

i is a screw-bolt, the head of which turns in the front end of slide I. the end screwing into block I, by means ot' which said block can be moved backward and forward in the slot in I.

Z is a hole provided with a female screw in block l to receive the screw-pivot Z,Fig. 4, of slide J.

The use of screw-bolt z' is to move slide J and its appendages to and from shaft F, so as to vary the size of the heel to be made without altering the angle of the'cutter and polisher.

J (a top view of which is given in Fig. 4) is a slide resting on the top of slide I and made to partake of the motion of the latter byY means of the pivot Z, which screws into the block I, Fig. 3.

J is a continuation of J, and provided with an upright arm, V, Figs. 1 and 4, the upper end of which arm bears against cam V', (between g and G, Fig. 1,) the arm being pressed against said cam by the action of spring l, Fig. 3, and pin 8, Fig. 4, projecting below slide V does not conform exactly to the shape of groove 16, but varies from it, as represented by the dotted lines in Fig. 7, at the end of the heel, the cutter and polisher (having a double motion) will be thrown out thereby, so as to make the end of the shoe-heel less beveling than the other parts, thus forming a more desirable and better-looking heel than could be produced by the machine without the use of said cam V.

4 is a stationary beveled cleat attached to the top of J, and 5 is another beveled cleat', but made adjustable by means of the screws 7 7, passing through a start, 6, as shown in Fig. 4.

Kis another slide, theshape of which is shown in the top view, Fig. 5. The ends of this slide are beveled so as to fit in between the cleats 4 and 5 on the top of J. On the under side of K is a start, l1, (represented by the dotted lines in Fig. 5,) into which screws the boltj, whose head turns in a continuation of J, as shown in Fig. 4. The object ofjis to move slide K and its appendages in aline parallehwith the heel-edge, so as to carry the cutter and polisher to and from the shoe.

9, Fig. 5, is a beveled steel block slidingin the slot 10 in K, by means of'which and pin 9, Fig. 6, which screws into it, slide Lis conned to the top ofK and also allowed to move.

la is a screw-bolt turning in K, as shown in Fig. 5, and screwing into a start on the under side of slide L, by means of which the latter, with its appendages, can be moved so as to carry the cutter and polisher to and from the shoe-heel at pleasure while the machine is in operation, the head of k being provided with a suitable key or crank, to be turned by hand.

L is a slide resting on the top of K and I', as shown in Fig. 1, and shaped as represented by the top view in Fig. 6. The under side ot' L has a llangc on each side, so as to clasp slide K and be guided thereby when moved by screw-bolt k.

M, Figs. 1 and 6, is an arm attached to L by means of pivot mi, on which it can be turned, and held in place by the over-hanging plate L and the screws which confine the latter to slide L.

N is an arm attached to the top of M by means ,of a screw, n. To one end of N is attached the tool rest or holder O, constructed like the rests in enginelathes.

P is the polishing-tool, of hardened steel, shaped as shown in- Fig. 6, and held in place by the set-screw p.

P, Fig. 9, is a perspective view of a diamond 4 shaped cutter, which may be used in place of the polisher P', in Fig. 6, to pare the heel. I prefer, however, for most work, to make use of the rotary cutter 14 for paring and the polisher P for polishing. The rotary cutter 14 is simply a plate of steel with its outer edge or edges beveled and sharp, and is confined to shaft 12 by a screw, as shown in Fig. 6. Shaft l2 turns in the uprights of plate 20, which is attached to L by pivot 21. Plate 20 can be confined in the same manner as plate M by means of L. s

13 is a drum to be driven by a belt connected with a larger drum, which may be actuated by hand or other power.- v

It is also obvious that a rotary polisher may be substituted for the cutter 14, if desirable; but I prefer to pare the heel by means of the rotary cutter 14 and polish it with thel polisher P; or, again, there is still another way in which I propose to make use alternately of a diamond cutter, P, and polisher P that is, by combining and arranging them in the same stock or handle, as shown in the top view, Fig. 11, and perspective, Fig. 12. The stock 24, Fig. 1l, rests upon arm N, to which it is attached by a screw-pivot, 25. The cutter is a flat piece of steel, the two edges of which are beveled so as to fit into a corresponding mortise in the stock, as shown in Fig. 12, and is confined by means of a bolt and thumbscrew, 26, the head of'said bolt being' beveled on one side, so as to bear upon the edge of the cutter, as represented in Fig. 12. Thus the cutter can be adjusted, taken out, or inserted, at pleasure. The polisher P is also confined in the stock by means of a dovetail, in the same manner as the cutter. No screw, however, is required, as it can be driven in sufficiently tight. Thus it is obvious that polishers of any required length or shape (straight, concave, or convex) may be used at pleasure to iinisli heels of any size or fashion.

The utility of combining the cutter and polisherin a single stock is also obvious, for the handle can rst be turned on pivot 25, so as to bring the cutter P into the right position to pare the heel, and when that operation has been performed the handle can be instantly turned so as to bring the polisher P into the proper position to polish the heel, and thus no time will be lost in changing and adjusting` the tools.

27 (see Fig. 6) is a pin against which the toolstocl; 24 may rest to steady the cutter in paring, or the pivot 25 may be screwed down so fast as to hold the tool in place. For polishing, however, the hand of the operator is only required to guide and steady the tool.

The lifts7 of leather composing the heel are first cut out by a die, seas to require as yfor the largestsized shoe to vibrate without touching L with its toe.L Wheel 17 is nonT turned so as to force the nails through 'the lifts and sole and clinch the points against the face of T. Being thus held between R and T, the heel is ready to be pared. The cutter 14 being now swung into the right position, the machine is set in motion, and (as itis evident from the foregoing description) the heel of the shoe will be vibrated, so as to present theV Whole of its curvilinear edge to the cutter, which will be so moved and guided as to give the shape required. Cutter 14 is now swung back and polisher P brought forward so as to bear upon the heel, by means of which, as the shoe is vibrated, the heel will be polished.

The application of the cutterand polisher combined, Figs. 11 and 12, and also of cutter P, Fig. 9, has been described above.

Thus the operations ot' attaching, paring, and polishing shoeheels can be performed with great rapidity, and the heels produced will be uniform and of the most desirable shape and perfect finish.

Vhat I claim as my invention, and desire to secure by Letters Patent, is-

1. The cams Vand 16, in combination with y the slides I, J, K, andL, and the tool-stock 24, constructed and operated as and for the purposes described.

2. The combination of the adjustable crank C, the arm D, andl the chains E E with the rotating pattern-block G, constructed and operated substantially as. described.

3. The tool-stock 24, constructed as described, in combination with the arms N and M, substantially as above set forth.

JACOB JENKINS.

lVitnesses:

N. AMES, W. G. S. KEENE. 

